Uploaded January 2019 | Updated September 2026, 2 weeks ago

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In this video lets take a quick look at the magic that is Charlieplexing. Charlieplexing is a way of individually controlling standard LEDs using a limited number of GPIO pins.

Dave Darko's YT channel - youtube.com/channel/UCz_G0tNVpnFzwADHkoM5brA

Dave's Sloth Badge Hackaday.io page - hackaday.io/project/28330-sloth-badge

The examples of badges:
My PCB3 (Although it's sold out for 2018) - tindie.com/products/brianlough/christmas-3-pcb
Dave Darko's Sloth Badge - tindie.com/products/davedarko/unbearable-sloth-badge-hair-clip
Dave Darko's K.I.T.T. Knight Rider Blinky LED Badge - tindie.com/products/davedarko/kitt-knight-rider-blinky-led-badge
Unexpected Maker's Unexpected Maker Badge (not sure this uses Charlie-Plexing though) - tindie.com/products/seonr/unexpected-maker-badge-2018

For more info on Dublin Maker - http://www.dublinmaker.ie/

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Parts Shown:
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Less than 1c LED* - lcsc.com/product-detail/Light-Emitting-Diodes-LED_Red-LED-SMDLED-80-100mcd_C84263.html?promote=MDM1MmM4VjhFQzdiZ3ZWTi9SUUJaTkZqU1FIakZkRXMvMDhQekMxRXBqWFduNGZkaTR1NXBKbjRSOTZwS08vUGZobnk4blZ0SWlJZjh1N1lsM2w2OG5SV2I0NkhwL0VTa0U0ZDdxM2cyeEl0M2VvcEwxRzNXOW1JZlNrWStrRkhVaUVkSzR1YnJqOA==

WS2812B LED* - lcsc.com/product-detail/Light-Emitting-Diodes-LED_5050-RGBIntegrated-Light-4Pin_C114586.html?promote=MWVhY0wyOGN5Tm1BVmc3UUdrZGwycjNRQkpNQ2VTY1pFcFdDMWp1Tkl1UnMyRkNhcDlvQ2FFdUFMdmE3aXRJVXV1SnRISGpoRGhqSUF2KytpdmEvOWU1SFNEWXdneVU0RmFKUHVDcTBlanlLNnFCeU9IWVFPcmZDZTNrdjdYc1FTSnVVUSsrUWg3Yw==

NodeMCU board (Get CP2102 Version)* - http://s.click.aliexpress.com/e/bFS8L23A

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My Tindie Store:
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I've started to sell stuff on Tindie, check it out!

tindie.com/stores/brianlough

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Other Platforms:
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Twitter: @witnessmenow - twitter.com/witnessmenow
Instagram - instagram.com/brian_lough
Instructables: witnessmenow - instructables.com/member/witnessmenow

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Support the Channel:
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Buying anything through the following links will help support the channel and not cost you anything extra.

Amazon.co.uk: amzn.to/2g7mJIO
Amazon.com : amzn.to/2ykDQ42

Aliexpress: http://s.click.aliexpress.com/e/wdhojba

LCSC (where I buy most of my parts for Tindie stuff): lcsc.com/?promote=ODM5ZTB5NlkwNUN3bkNCZUtGb0ZlSWFKTGJIaTl3WThNWldwU0R6QndkZ3prNWdPemlTcG5XSi94U1Zpc0g5Y3MwYjFOUTNIZjJLbGhwWllsZ3N5QnR2WkZRdXMvdGVFcVhJWlJOdnNBV1U0RDZuY1M4TFlqZWNQYUo4RkN6VVJ2c0J4MTcvU3NEdw==


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My Tools & Kit*:
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Ts-100 Soldering Iron
- UK : amzn.to/2nlOF23
- US : amzn.to/2jDcyxl

Logitech C920 HD 1080p Pro webcam
- UK: amzn.to/2pnxk9Z
- US: amzn.to/2BsLMiF

Blue Snowball USB Microphone
- UK: amzn.to/2C0x4TH
- US: amzn.to/2DEA85J

Self Adjusting Wire Strippers
- UK: amzn.to/2C0urkR
- US: amzn.to/2BXQAh1

*= Affiliate Links

#Charlieplexing
#electronics
#maker